<?php
`git config --global user.name "程嘉硕DJ"`;
`git config --global user.email "1184723890@qq.com"`;
$db=new PDO('mysql:host=localhost;dbname=db','root','12qwas');
$r=$db->query("select cy as 成语,first 首字 from chengyu limit 2");
foreach ($r as $item){
    print_r($r);
}